Hand-stamp.



R. R. SANDHAM.

HAND STAMP. APPLICATION FILED NOV. 1, I916- 1,227,204. 7 Patented May 22,1917.

' INVENTOR.

ATTORNEYS:

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RALPH R. SANDHAM, OFHARLAN, IO'WA, ASSIGNOBI OF ONE-HALF TO JOHN SANDHAM,

OF HARLAN, IOWA,

HAND-STAMP.

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1 '0 all whom it may concern:

Be it known that I,-RALPH R. sANDI-IAM, a citizen of the United States, residing in Harlan, county of Shelby, and State of Iowa, have invented certainnew and usemounted so as to return'the type-wheels to normal position after each impression, and my present improvements are particularly well adapted for hand-stamps, including What are known as check-protectors,'as well as numbering and dating stamps and stamps employing letters instead of numerals.

The invention consists in the various novel combinations and arrangements of the several different parts of the apparatus, all as hereinafter fully set forth and then pointed out in the claims.

I have illustrated a type of my invention in the accompanying drawings, wherein Figure 1, shows 'a side view of my im- 7 proved form of handestamp, with the upper part of the upper casing broken away.

Fig. 2, is a central vertical section of'the device, the plane of the section being indicated by line 22, Fig. 1.v

Fig. 3, is a perspective view of the baseframe, shown as detached, and with the type-wheel shaft, its bushings and springs mounted in place in the frame.

Fig. 4, is a central vertical section of the device, the plane of the section being indicated by line 4.4, Fig. 2.

Fig. 5, is a side view of the device in the depressed position which it assumes when pushed down by hand to print.

Referring to the drawings, in which like numbers of reference designate like parts throughout, 1 is the base-frame which is shown as made from sheet metal open at the top and on one of its sides and having an opening 2, formed in the under side and through which the set of type-wheels'pro ject slightly when making an impression.- In two opposite sides of the base-frame are formed rectangular shaped guide-slots 8, in which slide vertically the respective bushings 4, in which the ends of the type-wheel shaft 5, are mounted.

The vertical sides of the respective bushings 4, are parallel and fit snugly within Specification of Letters Patent.

Application filed November 1, 1916. Serial N01 128,928.

the guide-slots 3, so as to slide readily up and down therein and these slots also serve to limit the range of vertical movement of the bushings and likewise the tvpe-wheel shaft and. type-wheels. This peculiar mounting also provides a smooth mechanically controlled perpendicular movement of the type-wheels in the printing operation.

The under side of each of the bushing blocks 4, is formed with a groove 6, for the reception of the upper end of the springs 7, the lower ends of which rest in the pockets 8, which are provided by the flanges 9, formed from upset parts of the material of the lower side of the base-frame. These uprightflanges 9, are each notched at 10, for the passage of the bushings 4, in their vertical movements when the type-wheels are reciprocated. The flanges 9, extend a considerable distance upwardly and in fact to the highest points reached by the springs and they are of sufficient length to fully cover and house the springs and this arrangement insures a smooth action of the springs and prevents them from getting displaced. 1 V

The outer end of each of the bushing blocks 4, is formed with a rectangular shaped projection orboss 11, which fits into similarly shaped openings 12, formed in the opposite sides of the casing 13. Upon each end of the shaft is a washer 14, through which passes a screw 15, which takes into a. socket 16, formed in the center of the end of the type-wheel shaft 5. By thismeans the ends of the type-Wheel shaft are secured to the opposite sides of the upper casing 13, which is mounted to reciprocate vertically over the base-frame'and the shaft is moved in response to the movements of the casing. The upper casing 13, is fitted snugly over the base-frame 1, and is practically closed upon all its four sides and the top and is provided .upon its upper side with a handle 17, for depressing the casing, which through means of the described connection with the respective ends of the typewheel shaft, is spring mounted, upon the base-fra-me-and normally the casing is held upwardly by the springs 7.

Uponthe type-wheel shaft 5, are loosely mounted a suitable number of type-wheels 18, each of which is provided with a cogwheel 19, secured to the type-wheel and each cog-wheel is engaged by a toothed fingerwheel 20, which turns loosely upon a shaft 21, which is mounted upon the inner side of the casing 13, and extends parallel with the type-wheelrshaft. The casing 13, is bent outwardly at 22, to accommodate the finger-wheel shaft 21, and this same side of the casing is formed with a series of Vertical slits 23, as shown more particularly in Fig. 1. 'llhefinger vheels project through the slitsin the casing so as to be accessible from the exterior of the casing to the operator in setting the type-wheels, each of which turns independently of the others.

The cog-wheels are so related to the typewheels that the type on. the peripheries of the wheels may be set in alinement, as shown in the drawings, and the line on which the type print is indicated upon the exterior of the opposite sides of the device by means of contrasting marks 24. By placing the device so that the indicating marks 24E, register with a certain space on the paper which is to be printed on, the location of the impression may be definitely controlled. It will be noted that this indicator 24, is made on the surface of the material. of the baseframe so as to form a permanent mark. This mark may be made from enamel or in any other suitable well-known manner and similar marks are used at 25, upon the interior of the base-frame, as shown more particularly in Figs. 8, and 4:, and these lat ter marks are for the purpose of assisting the setting of the type-wheels in printing alinement when the'device is turned upside-c down for visible manipulatlon, the mark ex tending across the under side of the frame. Therespective ends of'the shaft 21, pass through the opposite sides of the casingv 13,1 and each end is screw-threaded for the re-' oeption of a nut 26, for locking the shaft in place. Each of the toothed finger-wheels 20, is provided with a spring tongue 27, which projects downwardly from a plate 28, whichis secured to the upper part of the casing 13, and these tongues engage the finger-wheels and serve to hold them in adjusted position. 7 r

In the construction of the casing 13,in which the sides thereof which support the type-wheel shaft are disconnected from the side through which the finger-wheels project, the base-frame with its type-wheels,

V type-wheel shaft, bushings and springs, may

be removed as a unit, by partly unscrewing the nuts 26, of the finger-wheel shaft 21,

then removing the'screws 15, from the opposite ends ofthe type-wheel shaft, and

springing the sides'of the casing slightly outwardly so as to release'the'squar-ed projections 11, from the openings 12, in said sides of the casing.

In the'upper part of the casing 13, is mounted a horizontally sliding frame 29, in one end of which is mounted a set of the frame and is coiled around a fixed stud 33, on the casing, said stud projecting into an orifice'36 in the sliding'frame. The

end of the frame 29, bearing the inkingdisks is provided with a puslupiece 5st, which 7 extends through an opening 35, inthe wallof the casing 13, so. as to'projcttothe out-i: side of the casing. disks are held out of contact with the typewheels and when it is desired to ink the wheels the push-piece 34:, is pressed inwardly so that the detents 31, disengage the type-wheels and the ink disks are brought in contact with the type on the wheels and the type are inked by'turning the typewheels through means of the finger-wheels.

ltwill be noted that in' my particular construction of this device, the outer casing forms a substantial and complete housing for the base-frame upon which it is mounted to reciprocate and thatthe type-wheels in the operation of printing move within the. base-frame and that the typerwheel shaft is held immovable in relation to the casing Normally the inking-' 1-3, by the squared ends of the bushing blocks in which the type-wheel shaft is carried. In taking the devicev apart for the purpose of cleaning or repairing it,'t he base-frame together with the type-wheels,

type-wheel shaft, its bushings and springs,

may be readily removed as a unit, in the. manner herein above described, and without dismounting the finger-wheels or disturbing the inking and type-wheel locking mechanism. It will also be observed'that the type-wheels and the cog-wheels are assembled on the shaft between the bushings, V

which areof substantial size and which serve to space the said wheels from the sides of the casing, as indicated in the drawings.

invention,

on the exterior of said base-frame, rec1proeating bushings sliding in said guide-slots and being detachably connected with said casing and moving in response thereto, and a type-wheel shaft mounted in said reciprocating bushings.

2. In a printing device of the class described, the combination of a base-frame having the opposite sides provided with vertical guide-slots, a vertically reciprocating casing mounted on said base-frame and the opposite sides of said casing being provided with openings registering with said guideslots in the base-frame, reciprocating bushings sliding in said guide-slots in the baseframe and projecting through said openings in the casing, a type-wheel shaft mounted in said reciprocating bushings, and releasable fastening devices connecting the respective ends of the said shaft with the sides of said casing.

3. In a printing device of the classdescribed, the combination of a base-frame, and a type-wheel carrying casing spring mounted on said base-frame and having capacity of vertical reciprocation thereon, the opposite sides of the base-frame being provided with vertical guides, sliding bushings mounted upon opposite ends of the typewheel shaft and fitting within the respective guides of said base-frame, the said bushings being operatively connected with the reciprocating casing and moving in response to the same, inwardly projecting flanges upon the opposite sides of said baseframe, and springs interposed between said flanges and said bushings, respectively.

4. In a printing device of the class described, the combination of a base-frame, and a type-wheel carrying casing spring mounted on said base-frame and having capacity of vertical reciprocation thereon, the

opposite sides of the base-frame being provided with vertical guides, sliding bushings mounted upon opposite ends of the typewheel shaft and fitting within the respective guides of said base-frame, the said bushings being operatively connected with the reciprocating casing and moving in response to the same the said base-frame being formed of sheet metal with the lower side out so as to form two inwardly projecting tongues or flanges and such parts being bent upwardly upon the interior of the base part so as to form spring receiving pockets, and springs interposed between said pockets and bushings, respectively.

5. In a printing deviceof the class described, the combination of a base-frame, and a type-wheel carrying casing spring mounted on said base-frame and having capacity of vertical reciprocation thereon, the said base-frame being formed of sheet metal bent so as to form a bottom and three vertical sides with the top and one side open, a casing having its under side open and mounted over said base-frame and adapted to reciprocate vertically thereon, a set of type-whee1s mounted within said base-frame and provided with a shaft having'the ends thereof projecting through opposite sides of sides of SLld, casing so as to move vertically the base-frame and secured to the opposite 6. In a printing device of the class described, the combination of a base-frame, a vertically reciprocating casing mounted on said base-frame, a type-wheel shaft mounted within said base-frame, inwardly projecting flanges upon the opposite sides of said baseframe and springs bearing against said flanges and the mountings of the type-wheel shaft and normally keeping the shaft pressed upwardly.

7. In a printing device of the class described, the combination of a base-frame, and a type-wheel carrying casing spring mounted on said base-frame and having capacity of vertical reciprocation thereon, the opposite sides of the base-frame being provided with vertical guides, sliding bushings having parallel vertical sides mounted upon opposite ends of the type-wheel shaft and fitting within the respective guides of said base-frame, the said bushings being operatively connected with the reciprocating casing and moving in response to the same, the under side of each bushing being formed with a groove, and springs interposed between said respective grooves and fixed points on the base-frame.

8. In a printing device of the class described, the combination of a base-frame having the opposite sides provided with vertical guide-slots, a vertically reciprocating casing mounted on said base-frame and the opposite sides of said casing being provided with openings registering with said guideslots in the base-frame, reciprocating bushings sliding in said guide-slots in the baseframe and having their outer ends provided with a shoulder adapted to rest against the side of said casing and projecting through the said openings inthe casing, a typewheel shaft mounted in said reciprocating bushings, and releasable fastening devices connecting the respective ends of the said shaft with the sides of said casing.

9. In a printing device of the class described, the combination of a base-frame, and a type-wheel carrying casing spring mounted on said base-frame and having capacity of vertical reciprocation thereon, the

opposite sides of the base-frame being provided with vertical guides,.sliding bushings having parallel vertical sides mounted upon opposite ends of the type-wheel shaft and fitting within the respective guides of said base-frame, the said bushingsbeing operatively connected with the reciprocating casing and moving in response to the same.

10. In a printing device of the class described, the combination of a base-frame, and a type-wheel carrying casing spring mounted on said base-frame and having capacityof vertical reciprocation thereon, the opposite sides of the base-frame being provided with vertical guides, sliding bushings having parallel. vertical sides mounted upon opposite ends of the type-wheel shaft and Copies of this patent may be obtained for fitting within the respective guides of said base-frame, the said bushings being operatively connected with the reciprocating casing and moving in response to the sarhe, the

lower ends ofthe respective bushing-guidesbeing provided with angular portions and" the under sides of the respective bushings being prov1ded w1th angular portions con forming to those of the said guides serving, to seat the bushings securely at the bottom ing witnesses.

RALPH R. SANDHAM.- Vitnesses r L. M. KERR, O. P. -WYLAND.

five cents each by addressing the Commissioner of Patents, Washington, D. G. 

